baber/WOPTO huggingface dataset:
Patent CA-2062935-A1 (CA)
Title: Esterification process
Inventor: KEMP ROGER A
IPC: C12P7/62
Filed: 1992-03-12
Abstract: R 3107 (R) ABSTRACT            A process is described for the esterification of a carboxylic acid, such as myristic acid, with an alcohol, such as isopropyl alcohol, wherein the acid and alcohol are contacted with an esterification enzyme, such as a lipase, and the water formed in the reaction is removed by pervaporation.
Patent CA-2065042-A1 (CA)
Title: Power plant and method of retrofitting existing power plants
Inventor: SHELOR F MACK
IPC: F22B1/18
Filed: 1990-07-20
Abstract: ABSTRACT    A power plant including a coal-fired boiler, having a boiler space, heat exchanging means for generating steam, one or more air ports and exhaust means.  The power plant also includes an internal combustion engine having an exhaust means, wherein the exhaust means of the engine are connected to the air ports of the boiler.
Patent CA-2066867-A1 (CA)
Inventor: BUJARD PATRICE
IPC: H01L23/50
Filed: 1992-04-22
Abstract: Heat-conductive adhesive films, laminates with heat-conductive adhesive layers and the use thereof Abstract of the Disclosure A laminate comprising (a) a carrier having a heat conductivity of at least 10 W/mK and a thickness of 10 to 100 µm, and (b) a dielectric adhesive layer which is applied to at least one surface of said substrate and which contains a heat-conductive filler and has a thickness of 5 to 500 µm and a heat conductivity of 1 W/mK. The flexible laminate> or a dielectric and self-supporting adhesive film which contains a heat-conductive filler and has a heat conductivity of at least 1 W/mK, is suitable for removing heat from leadframes which have electrically insulated contact surfaces for electrical and electronic components and which are encapsulated with a synthetic resin moulding material, typically dual-in-line plastic packages, by bonding the rear sides of the contact surfaces to the leads.
Patent CA-2067292-A1 (CA)
Title: Sports shoe structure
Inventor: MARCOLIN ALESSANDRO
IPC: A43B5/16
Filed: 1992-04-28
Abstract: The sports shoe structure, particularly but not exclusively for practicing skating, parachute gliding and cross-country skiing includes an upper with which a cuff is associated, a supporting element for the ankle which is removably associable with the structure and which has a plurality of tabs which can be associated with the upper and can be interposed laterally between the cuff and the upper.
Patent CA-2067853-A1 (CA)
Title: Method for controlling fouling deposit formation in a liquid hydrocarbonaceous medium
Inventor: FORESTER DAVID R
IPC: C10G9/16
Filed: 1992-05-01
Abstract: ABSTRACT       Glyoxylic acid/alkylphenol derivatives of polyalkenyl-succinimides are used as effective antifoulants in liquid hydro-carbonaceous mediums, such as crude and gas oil distillates during processing of such liquids at elevated temperatures.
Patent CA-2068332-A1 (CA)
Title: Multi-compartment container for proportional dispensing of a plurality of liquids
Inventor: DROBISH JAMES L
IPC: B65D47/06
Filed: 1990-11-26
Abstract: The invention relates to a container for successively dispensing substantially uniform volumes of a plurality of liquid ingredients such that the liquids are simultaneously dispensed in a desired proportion to form a mixture. The problem associated with tiltable trap chamber dispensers is their inability to proportionally dispense different liquids without cross contamination. The container has a plurality of separate compartments (12); each compartment (12) being adapted to house a different liquid ingredient.  Each compartment has a tubular metering device (10) located therein.  The metering device dispenses a previously metered volume and meters a second volume by controlling the venting of air within the compartment each time the container is tilted and uprighted as in a normal dispensing operation. A continuous lip (23) surrounds the dispensing opening of each metering device. The continuous lip (23) prevents a liquid ingredient from entering the dispensing opening of another liquid ingredient compartment (12) and contaminating that compartment.
Patent CA-2069474-A1 (CA)
Title: Vandal-resistant seat
Inventor: CLEMENTS JOHN ARTHUR
IPC: B29L9/00
Filed: 1990-12-10
Abstract: A method of manufacturing a formed article is disclosed which includes an outer fabric material and an inner micro-cellular thermosetting foam plastics material, comprising placing the outer fabric material, which has been treated on its inner side with a flexible thermosetting plastics material composition, in a mould;  closing the mould to define a mould cavity and to deform the fabric material to a predetermined configuration; injecting a foamable flexible thermosetting plastics material composition into said mould; allowing the foamable flexible plastics material to react and completely fill said mould, the pressure of the reaction in the closed space of the mould causing the flexible plastics material to bond to the fabric material; allowing the resultant fabric covered micro-cellular foam plastics material to cure; opening the mould and removing the article.
Patent CA-2070354-A1 (CA)
Title: Sensitization of photopolymerizable compositions
Inventor: SAHYUN MELVILLE R
IPC: G03F7/027
Filed: 1992-06-03
Abstract: ABSTRACT      Photopolymerizable  compositions  containing  free-radically  polymerizable  monomer,  diaryl  iodonium  or triaryl  sulfonium  complex  salts,  and  certain  1,3,5-tri(monoaryl)-2-pyrazolines.   In dual-curable systems, epoxides are also polymerized.     The   inventive photopolymerizable   compositions exhibit  high  photosensitivities  and  are  relatively unaffected by the presence of oxygen.
Patent CA-2070386-A1 (CA)
Title: Process for the preparation of fluorobenzenes and fluorotoluenes
Inventor: LITTERER HEINZ
IPC: C07C17/00
Filed: 1990-10-18
Abstract: Process for the preparation of fluorobenzenes and fluoro-toluenes Abstract A process  for the preparation of  fluorobenzenes  and fluorotoluenes of the formula (I), in which X is H or a methyl group, R1, R2 and R3 are, independently of each other, at least one of the radicals H, F, Cl and C1-C3-alkyl, at least one of these radicals being fluorine, and S1 and S2 are,  independently of each other, H and/or radicals which reduce the electron density at the benzene nucleus, but preferably H, characterized in that benzal-dehydes of the formula (II) in which R1, R2, R3, S1 and S2 have the meaning given above, are reacted of a catalyst, activated by treatment with hydrogen, comprising at least one transition metal of subgroups VII to VIII of the Periodic-Table, at 150 to 600°C.
Patent CA-2071687-A1 (CA)
Title: Offshore structure and installation method
Inventor: WADDELL JOHN W
IPC: E02B17/00
Filed: 1992-06-19
Abstract: ABSTRACT   The  invention  provides  an  improved  structure  for  standing  offshore, particularly in arctic environments,  and a method for installing this structure.   The structure comprises a shield portion which rests on a seabed and primarily resists environmental loads, such as from ice, and a separate support portion which comprises a plurality of piles driven into the seabed to support a deck payload.   The method for installing the structure comprises moving a  shield portion of the structure to its intended location with piles pre-installed therein, setting the structure on the seabed, driving the piles into the seabed, and then severing any connection between the piles and the shield portion.
Patent CA-2071782-A1 (CA)
Inventor: TRAN LOI B
IPC: B60C25/02
Filed: 1992-06-22
Abstract: A tool for removing a tire from a wheel rim includes an elongated body member with a handle at one end and a tool head at the other end.   The tool head includes a tire engaging member having at least one tire bead support and terminating in at least two laterally spaced apart tire contact parts.   The tool head further includes  a rigid,  L-shaped wheel rim engaging member terminating in a wheel rim contact part.  The wheel rim contact part is sufficiently spaced from the tire engaging member to accept a wheel rim flange therebetween.  In a preferred embodiment, each of the at least two tire contact parts and the wheel rim contact part has a rotatable roller.
Patent CA-2075233-A1 (CA)
Title: Surgical retractor
Inventor: MATULA PAUL A
IPC: A61B17/068
Filed: 1992-08-04
Abstract: A novel surgical retractor is provided including a handle assembly, a housing and a collapsible retractor assembly connected to a distal end of the housing. The handle assembly includes a stationary handle in cooperation with an actuating structure for manipulating the collapsible retractor assembly through the housing.      The handle assembly may be configured in a variety of forms including palm grips, pistol grips, axial grips, ring grips, etc. The housing includes a tubular structure having an inner tube axially disposed within an outer tube.   The outer tube is fixed in the stationary handle with the inner tube passing through the outer tube and connected to the actuating structure. Where desired, either the outer or inner tube may be rotatably attached to the stationary handle. The retractor assembly is attached to the distal end of the housing and includes a reciprocal yoke assembly interconnected with a plurality of collapsible interleaved retractor blades. One element of the yoke assembly is typically maintained stationary while the other is allowed to reciprocate axially to deploy the interleaved retractor blades into a fan configuration.
Patent CA-2076100-A1 (CA)
Title: Low noise fan assembly
Inventor: GLIEBE PHILIP R
IPC: F01D5/34
Filed: 1992-08-13
Abstract: A gas turbine engine rotor assembly such as a fan or compressor includes a plurality of rotor blades spaced axially from a plurality of stator vanes inside an annular duct. The number of vanes is selected for a predetermined number of blades for obtaining substantially equal values of a cut-off ratio for at least two blade passing frequency harmonics for reducing spinning mode noise from the duct.
Patent CA-2077410-A1 (CA)
Title: Process for the preparation of glycosides
Inventor: ERNST BEAT
IPC: C07H15/04
Filed: 1992-09-02
Abstract: Process for the preparation of glycosides Abstract of the Disclosure The invention relates to a process for the preparation of glycosides by reacting protected sugars carrying an anomeric hydroxyl group with an aglycon selected from the group consisting of alcohol, thiol and a protected sugar carrying a non-anomeric hydroxyl group, in an inert solvent, in the preferred temperature range from -20 to +250°C, in the presence of catalytic amounts of metal complex salts. The glycosides are obtained in high yield. Often an excess of the .alpha.- or .beta.-form is obtained and even the pure .alpha.- oder .beta.-forms are obtainable.
Patent CA-2079495-A1 (CA)
Title: Smoking article with co oxidation catalyst
Inventor: KOLTS JOHN H
IPC: A24D1/22
Filed: 1992-09-30
Abstract: Abstract of the Disclosure The present invention relates to a cigarette-like smoking article which is capable of producing substantial quantities of aerosol, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products or sidestream aerosol.          Embodiments  of the present  smoking article comprise a combustible fuel element, a physically separate CO oxidation catalyst attached  adjacent  to  the  fuel  element,  a  physically  separate aerosol-generating means including an aerosol forming material attached adjacent to the catalyst in conductive heat exchange relationship with the fuel element, and a means for delivering the generated aerosol to the user.          The articles of the present invention provide the user with the taste, feel, and aroma associated with the smoking of conventional cigarettes without  burning tobacco.   The CO oxidation  catalyst substantially decreases the level of CO inhaled by the user of such an article, by oxidizing the CO created by the burning fuel element to CO2.
Patent CA-2079936-A1 (CA)
Title: Process for Preparing Barium Titanate Single Crystals
Inventor: KUROSAKA AKIHITO
IPC: C30B15/00
Filed: 1992-10-06
Abstract: A mixture of titanium dioxide and an oxide or carbonate of barium includes one or more transition metal elements selected from the group of V, Cr, Mn, Fe, Co, Ni and Cu, in the amount of 2 ppm or more.  This mixture is used as a starting material.  The mixture is heated to a predetermined temperature to make a melt.  Then, a seed crystal of BaTiO3 is brought into contact with the melt under an environment with a low oxygen partial pressure of 0.02 atm. or less.  From this state, the above melt is slowly cooled to grow a single crystal on the seed crystal.          The thus obtained single crystal is heated in a temperature of 600 °C or more, under an oxidizing environment with its oxygen partial pressure more than 0.1 atm.
Patent CA-2080222-A1 (CA)
Title: Vibratory screening apparatus
Inventor: DOUGLAS PATRICK J
IPC: B07B1/42
Filed: 1992-10-07
Abstract: ABSTRACT      There is disclosed a vibratory screening apparatus 10 comprising a frame having a pair of opposed screen frame sides 11, a multi-deck screen 12 mounted on the frame sides 11, and a shaft-driven vibratory mechanism coupled with the screen 12 in order to impart vibration energy thereto so as to assist the screening operation, in which the vibratory mechanism comprises: a pair of stubshafts 14 associated one with each of the frame sides 11 and being spaced apart from each other, a respective counterweight 17 mounted on each stubshaft 14 in the space between the housings 15, 16 and which is rotatable with the stubshaft to apply vibration energy to the stubshaft and therefrom to the screen 12 via the bearing housings 15, 16 and the frame sides 11, and drive means 20 coupled with each stubshaft and arranged to be driven in synchronism to apply synchronous rotary motion to each stubshaft.
Patent CA-2080298-A1 (CA)
Title: Water softener with resin beads of different mesh sizes
Inventor: NOWLIN DUANE
IPC: A23L29/20
Filed: 1992-10-09
Abstract: This invention relates to a water softening system having a resin tank containing water softening mineral beads, the resin tank being connected to a hard water flow line, a soft water distribution line extending from the resin tank and a regenerate tank in communication with the resin tank adapted to contain material for generation of regenerant for intermittent regeneration of the water softening mineral beads, the improvement wherein said water softening mineral beads comprise a first quantity of water softening mineral beads of a first range of mesh sizes and a second quantity of water softening mineral beads of a second range of mesh sizes, the first quantity of beads being of a finer mesh size than the second quantity of beads, when measured by weight, there being a greater amount of the second quantity than of the first quantity, whereby the flow of regenerant through the first and second quantities causes the beads to be distributed such that the regenerant flows through the harder to regenerate second quantity of beads before flowing through the easier to regenerate first quantity of beads, such that the overall efficiency of regeneration is increased.
Patent CA-2080633-A1 (CA)
IPC: F17C13/04
Filed: 1992-10-15
Abstract: A micropanel for the delivery of gas from a supply cylinder to a tool location comprises an arrangement of valves, pressure regulator and associated components adapted to enhance the purity of the delivered gas and the safety of the gas delivery panel.
Patent CA-2080852-A1 (CA)
Inventor: YAP PEDRO
IPC: B60C9/22
Filed: 1992-10-19
Abstract: ABSTRACT TRUCK TIRE WITH SPLIT OVERLAY      A medium pneumatic truck tire (10), has a belt package (18) comrising a plurality of belt plies (20, 22, 24, 26).  The tread (16) of the tire is 200 to 380mm wide (8 inches to 15 inches).  In the shoulder area (31) of the tire, an overlay strip (32) is abutted against belt edge (34) of top belt (26) and is disposed over belt edge (33) of the adjacent belt (24).  The overlay strip (32) is applied in two layers, and the reinforcing cords (38) therein have an angle of 0° with respect to the equatorial plane of the tire (10).  The overlay strip (32) is about 51mm (2 inches) wide and has an overlap splice of about 40mm (1.5 inches).  The overlay strip (32) overlaps belt edge (36) by 15 to 20mm (0.5 to 0.75 inch).
Patent CA-2082628-A1 (CA)
Inventor: MISCHKE PETER
IPC: C09B67/42
Filed: 1991-05-08
Abstract: The invention provides for the use of alkanediols of from 4 to 8 carbon atoms as dustproofing agents in solid dye preparations. Dye preparations (powders) which contain such alkanediols are extremely low-dusting.
Patent CA-2083796-A1 (CA)
Inventor: MICHEL PETER
IPC: F16H1/16
Filed: 1992-11-25
Abstract: To simplify the design and assembly of an adjustment drive with a gear wheel mounted to rotate in a gear housing with a gear housing lid and with a driver provided with a power take-off element (e.g., a pinion) being in a drive connection with it on the output side, directly or indirectly, present invention provides that the driver is simultaneously structured as a power take-off shaft and is mounted to rotate with at least one bearing region in the gear housing or in the gear housing lid, respectively. In a further embodiment, the gear wheel is a one-piece component of the driver and is preferably placed into a drive connection with it via spring web type spokes in the form of tangential stop damping.
Patent CA-2084681-A1 (CA)
Title: Fluid valve device and a positive-displacement pump
Inventor: LUNDBAECK STIG
IPC: F04B43/02
Filed: 1991-06-07
Abstract: ABSTRACT OF THE DISCLOSURE     A fluid valve device for on-off control of fluid through a passage extending between two fluid ports and including a valve seat comprises a hollow valve member which is movable into and out of sealing engagement with the valve seat and defines a valve chamber.  The valve chamber communicates with one of the fluid ports through the valve seat and is associated with a valve member actuating device which translates the pressure of the fluid received in the valve chamber from an inlet for the fluid flow into a force acting on the valve member to displace it relative to the valve seat.  The valve member actuating device in one embodiment includes a thrust surface on the valve member which is directed away from the valve seat and forms part of the wall of the valve chamber. A second thrust surface on the valve member is directed oppositely and defines a chamber which is isolated from the valve chamber and the flow passage. A positive-displacement pump includes the fluid valve device as an inlet valve for controlling the admission into the pump chamber of the fluid being pumped.
Patent CA-2086509-A1 (CA)
Inventor: KIENY MARIE-PAULE
IPC: A61P31/18
Filed: 1992-04-30
Abstract: Immunogenic compositions comprising soluble, non-cleavable, chimeric HIV-1 gp160 variants capable of eliciting human immunodeficiency virus type 1 (HIV-1) gp160-specific antibodies are provided. These HIV-1 gp160 variants comprise the following regions: i) a first region derived from the gp160 of a first strain of HIV-1; ii) a second region derived from the gp160 of a second strain of HIV-1 wherein said second region fails to contain functional major and minor proteolytic cleavage sites (amino acids 483-486 and 475-479, respectively) and functional major and minor hydrophobic domains (amino acids 487-516 and 659-680, respectively); and iii) an optional third region, derived from the gp160 of said second strain, located at the amino terminus of the recombinant envelope.
Patent CA-2086586-A1 (CA)
Title: Flexible type fishing lure
Inventor: RIGHETTI RANDALL D
IPC: A01K85/18
Filed: 1992-12-31
Abstract: The present invention is a fishing lure which features a segmented body connected by a thin flexible membrane, an airfoil type shape for lift, properly weighted and having a diving bill, where the combination of these features causes a serpentine or side to side motion at suspended depths through the water.
Patent CA-2087127-A1 (CA)
Title: Means for assuring proper orientation of the film in an asymmetrical radiographic assembly
Inventor: DICKERSON ROBERT E
IPC: G03C1/76
Filed: 1993-01-12
Abstract: MEANS FOR ASSURING PROPER ORIENTATION OF THE FILM     IN AN ASYMMETRICAL RADIOGRAPHIC ASSEMBLY          Abstract of the Disclosure An asymmetrical radiographic element is disclosed comprised of a transparent film support, green sensi-tized silver halide emulsion layer units of differing sensitometric characteristics coated on opposite sides of the film support, and a processing solution decolorizable means for reducing crossover to less than 10 percent.  The element is positioned between intensi-fying screens and mounted in a cassette for exposure to X-radiation.  A processing solution decolorizable pentamethineoxonol dye with insignificant absorption at 550nm is incorporated into an overcoat layer to distin-guish which of the emulsion layer units is positioned nearest a source of X-radiation during exposure.
Patent CA-2087325-A1 (CA)
Title: Method of purifying .alpha.-l-aspartyl-l-phenylalanine methyl ester
Inventor: TAKEMOTO TADASHI
IPC: C07K5/072
Filed: 1993-01-14
Abstract: Mixtures containing .alpha.-L-aspartyl-L-phenylalanine methyl ester and 3-benzyl-6-carboxymethyl-2,5-dioxopiperazine are brought into contact with hydrochloric acid in an aqueous solvent to precipitate .alpha.-L-aspartyl-L-phenylalanine methyl ester hydrochloride and 3-benzyl-6-carboxymethyl-2,5-dioxopiperazine, which are then separated from each other by classification. The method of the invention permits efficient purification of .alpha.-L-aspartyl-L-phenylalanine methyl ester.
Patent CA-2091732-A1 (CA)
Title: A process for the preparation of 2-fluoro-9-(2,3,5-tri-o-benzyl-beta-d-arabinofuranosyl) adenine
Inventor: MARKOVAC ANICA
IPC: C07D473/34
Filed: 1993-03-16
Abstract: A process for the preparation of 2-fluoro-9-(2,3,5-tri-O-benzyl-beta-D-arabinofuranosyl)adenine (I) is described. The process involves reacting a protected 2-fluoro adenine with a protected chlorosugar under controlled conditions of temperature (80-85 DEG C) to produce (I), rather than using a process involving fluorinating a 2-substituted nucleoside precursor of (I).
Patent CA-2091929-A1 (CA)
Title: Mobility device anchoring system
Inventor: LUTZ ALLEN
IPC: B60R22/12
Filed: 1993-03-18
Abstract: ABSTRACT OF THE DISCLOSURE             An apparatus used in conjunction with the plurality of belts for securing mobility devices to the floor of a mass transit vehicle.  The apparatus sits within an opening placed in the floor of the mass transit vehicle and lies flush thereto.      The apparatus includes a port which cooperates with a retaining end of a securement belt.  When the retaining end of the securement belt is placed in a first orientation it is free to enter the port of the device.  Once it has entered the port of the device, the retaining end is rotated 90 degrees thereby preventing its exit from the port of the device.
Patent CA-2092362-A1 (CA)
Inventor: CHO BYOUNG W
IPC: A42B1/06
Filed: 1993-03-24
Abstract: The present invention relates to an improved free size cap which can be conveniently used for athletics such as golf, field sports such as mountain-climbing and fishing, and leisure.  The invention comprises a main body of the cap formed with spandex mixture fabric woven by using spandex yarn for weft and a yarn having no elasticity for warp, in which said weft is disposed to the front and rear direction of the cap, and a sweat band, formed of two layers of weft knitted fabrics having napped surfaces.  The weft knitted fabrics are sewn up together with a soft part of the main body of the cap such that the weft knitted fabrics can be expanded and contracted to the perimeter direction of the forehead.